All right to Glenn

• Perfectly good, to astronauts: Hyph
• Just swell
• "All systems go"
• More than alright
• Good to go, at NASA
• "All's well" at NASA
• No prob, at NASA
• Astronaut's reply
• Perfect, in rocketry

Wiktionary Word definitions in Wiktionary
a. (alternative spelling of A-okay English)